EP0068729A1 - Motorgehäuse - Google Patents

Motorgehäuse Download PDF

Info

Publication number
EP0068729A1
EP0068729A1 EP82303140A EP82303140A EP0068729A1 EP 0068729 A1 EP0068729 A1 EP 0068729A1 EP 82303140 A EP82303140 A EP 82303140A EP 82303140 A EP82303140 A EP 82303140A EP 0068729 A1 EP0068729 A1 EP 0068729A1
Authority
EP
European Patent Office
Prior art keywords
motor
housing
stator
rotor
assembly
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP82303140A
Other languages
English (en)
French (fr)
Inventor
Richard Edward De Sisto
Dale A. Hickman
Larry E. Snider
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SPX Corp
Original Assignee
General Signal Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by General Signal Corp filed Critical General Signal Corp
Publication of EP0068729A1 publication Critical patent/EP0068729A1/de
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/22—Auxiliary parts of casings not covered by groups H02K5/06-H02K5/20, e.g. shaped to form connection boxes or terminal boxes
    • H02K5/225—Terminal boxes or connection arrangements
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
    • H02K11/40—Structural association with grounding devices
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/08—Insulating casings
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/14—Means for supporting or protecting brushes or brush holders
    • H02K5/143—Means for supporting or protecting brushes or brush holders for cooperation with commutators
    • H02K5/148—Slidably supported brushes
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
    • H02K5/173—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using bearings with rolling contact, e.g. ball bearings

Definitions

  • Fractional horsepower motors are used in a wide variety of devices that one encounters daily. These devices include: blenders, food mixers, small power hand tools, vacuum cleaners, ventillating fans, heaters, and a wide vareity of other products. Although these motors are so ubiquitous that an average home may have ten or more devices using such motors, they are highly sophisticated and precision-built devices which are produced in large numbers by many manufacturers. There is much competition for market .share in the production of these motors, and each manufacturer seeks to design a motor which he can make a little bit better and a little'bit cheaper, thereby improving his market position and profit potential. Any design which can minimize or reduce cost by even a fraction of a cent per motor is considered of value in this sophisticated and crowded art.
  • Patent 4,038,573 issued July 26, 1977 to Hillyer, et al, discloses a stator coil terminating means which is used on the stator of the present application.
  • Patent 4,056,749 issued November 1,1977 to Carlson, et al discloses a modular motor assembly and a different technique for the economic assembly of the various components of a fractional horsepower motor.
  • the abovementioned patents are all United States patents which are assigned to General Signal Corporation.
  • Patent 3,784,856 issued January 8.1974 to Preston, discloses a specific brush holder assembly and, coincidentally, a portion of a motor housing.
  • Patent 3,924,147 issued December 2, 1975 to Tarnow et al discloses a motor assembly technique employing a printed circuit board.
  • Patent 3.979,615 issued September 7, 1976 to Neff discloses a stator assembly and an alternate means of making connections thereto.
  • Patent 3,984,908 issued October 12, 19 76 to Ackley discloses other terminal means for use with a stator.
  • Patent 4,092,556 issued May 30,1978 to Mabuchi discloses means for air cooling a motor.
  • the motor may comprise a stator assembly having terminals for making connections similar to those shown in US patents 4,038,573 and 4,056,749.
  • a conventional rotor, commutator, and bearing assembly is also provided:
  • the motor components are housed in a nonconducting, plastic housing which comprises two parts which mate together in a plane including the axis of the rotor.
  • One of the housing members may be conveniently designated as the assembly half and the other as the cover half.
  • the assembly half includes guides and recesses for locating and supporting the stator, the bearings, the commutator brushes, and other minor parts to be described more fully hereinbelow.
  • Resilient biasing means assembled in the assembly half of the housing bias the stator and bearings towards the cover half when it is placed in position and secured to the assembly half. With the cited elements resiliently biased towards reference points in the cover half, they are accurately positioned with respect to each other so that no further adjustment of the parts is required to produce a functional motor.
  • the motor housing includes, as an integral part thereof, a brush and spring channel.
  • the contact member which is plugged into a contact of a terminal board attached to the stator, fits into a slot in the brush channel at .the end remote from the commutator and provides the electrical connection between the brush and the stator winding.
  • the brush channel includes means for inhibiting the forward motion of the brush spring, so that it cannot contact the commutator when the brush wears down. Brushes may be simply and expeditiously replaced by removal of the cover half of the housing, replacement of the brushes, and replacement of the cover half of the housing.
  • a variety of means are provided for mounting the motor, and a grounding clip is provided for grounding the stator and armature shaft.
  • the housing has incorporated therein strain relief means for gripping the wires and preventing any tension applied thereto from being transmitted inward of the housing.
  • a particular feature of the motor assembly is the provision for cooling the motor. Coupled-to the armature shaft is a fan Which servesto pull cooling air through openings provided in the motor housing at the commutator end. The cooling air is exhausted from the housing at the remote end.
  • the flow of cooling air has been improved by providing an annular opening having a radius a little larger than the locus of the outer limits of the rotating fan blades.
  • the annular opening is preferably configured by the meeting of the frustum of two right circular cones such that the apex angle of the cone associated with the inner frustum is greater than the apex angle of the cone associated with the outward frustum. This configuration has been found to provide an improved flow of cooling air thereby allowing the motor to produce more work.
  • the bearing at the fan end is cooled by having a plurality of holes or scallops through which cooling air is pulled and exhausted through the recited annular opening.
  • speed nuts may be captured in appropriately- positioned recesses to provide for one form of mounting.
  • the grounding clip may also be captured in an appropriate recess, which may also capture a speed nut. Capturing the grounding clip in this manner prevents its accidental loss, and concomitant loss of grounding, if the motor is disassembled.for brush replacement.
  • the invention provides a fractional horsepower electric motor comprising a rotor, a stator, and a housing for said rotor and stator characterized in that said housing comprises first and second parts configured to mate with one another so as to define an assembly for housing and - supporting said rotor and said stator, said assembly having opposed end walls formed with bearing supports for positioning and locating respective rotor bearings and having openings formed therein for the exit and entrance respectively of cooling air from and to the housing, one of said parts further being formed with locators for cooperation with the stator to accurately position the stator relative to the bearing supports, and one of said parts further including as an integral part thereof means for retaining brushes for electrically contacting a commutator of the motor.
  • FIG. 1 there will be seen an isometric view of a completed motor assembly as seen from the fan end.
  • the motor housing includes the cover half indicated generally as 100 and the assembly half indicated generally as 200. Wires 301 pass through hole 201 of the assembly portion 200.
  • the cover 100 and assembly portion 200 of the housing are held together by means of screws 302 which pass through a body hole in the cover 100 and tap into. - the assembly portion 200. If desired, other fastening means could be provided.
  • the shaft 303 may be seen projecting from the right-hand end of the housing and the left-hand end of the shaft 303 may also be seen at the left-hand end of the housing.
  • the assembly portion of the housing 200 and the cover portion 100 separate at parting line 101.
  • the orifices 102 and 202 through which cooling air is expelled.
  • the fan blades might be visible through the orifice opening 102.
  • illustration of the fan blades in Figure 1 would add unnecessary detail and obscure details relating to the housing.
  • FIG. 2 there will be seen another isometric view of the motor housing as seen from the end remote from the cooling fan. Entrance holes 103 are provided for the entrance of cooling air. Additional assembly screws 302 may be seen.
  • mounting posts 305 which may be a part of a frame assembly on which the motor is to be mounted.
  • the screws 304 pass through a hole 104 in the cover 100 and through a mating hole 204 in the assembly portion 200 and are secured in the posts 305.
  • Figures 4 and 5 comprise end view of the cover assembly 100 as viewed from the fan end and power shaft end, respectively.
  • Figure 6 comprises a cross section view of Figure 3 taken along the line 6-6.
  • Centrally located in the cover 100 is a depression 105 and ribs 106.
  • the ribs 106 provide a bearing surface for the stator assembly for locating it relative to the bearings.
  • Left and right bearing support depressions 107 and 108 are included in the cover 100.
  • the left and right bearing supports 107 and 108 are arcuate in shape and are configured and contoured to securely-position shaft bearings in a predetermined location and orientation with respect to the ribs 106. It should be understood that the left and right bearing supports 107 and 108 could be configured with other shapes than arcuate.
  • the matter of overriding importance is that the configuration of the ribs 106 and that of the bearing supports 107 and 108 are such as to provide a predetermined location for a stator assembly and bearing for a rotor shaft such . that. the rotor can rotate-freely without interference from the stator.
  • Those familiar with assemblies of this nature will recognize that the required relationships can be provided with bearings which do not have an outer circular configuration and/or with bearing supports which are other than arcuate.
  • the screws 302 of Figures 1 and 2 pass through holes 109 formed as an integral part of the cover 100.
  • a tongue 110 cooperates with the assembly base 200 to provide a strain relief for the wires 301.
  • the orifice 102 and 2.02 through which cooling air is expelled, has a generally circular configuration which slopes away from a midpoint 111 such that the outer and inner limits 112 and 113, respectively, are more remote-from the fan blade and/or rotor shaft 303.
  • the surface bounded by the inner limit 113 and the midpoint III comprises the frustum of a right circular cone, and in like manner, the surface between the midpoint III and the outer limit 112 also forms the frustum of a right circular cone.
  • the parting line 101 is not everywhere planar; and along the edge 115 there is a step 116.
  • the parting line 101, edge 115, and step 116 mate with corresponding parts on the assembly portion 200.
  • a brush channel is included as an integral part of the housing assembly. As will be seen, the channel proper is in the assembly portion 200 of the housing. However, the cover includes the surface 117 which closes the brush channel.
  • FIG. 7 Considering now more specifically Figure 7, there will be seen a view looking to the interior of the assembly portion'200 of the motor housing.
  • elements in Figure 7 which have comparable, or nearly comparable, parts in the cover portion 100 have been given identification numbers which differ only by their first digits.
  • the mounting holes 104 of Figure 3 mate with the mounting holes 204 of Figure 7.
  • the assembly holes 109 of Figure 3 mate with holes 209 of Figure 7.
  • the hole 109 is a body hole, while the holes 209 have a smaller diameter to faciliate assembly with self tapping screws. It will be obvious that through holes could be substituted for the tapping holes 209 and appropriate nuts and bolts used instead of the self-tapping screws 304.
  • the assembly portion 200 of the housing includes an orifice 202, cooling air entrance holes 203, and ribs 206.
  • the ribs 206 do not have a function identical to the ribs 106. That is, the ribs 106 determine the location of a stator relative to the housing 100.
  • the ribs 206 merely provide an initial seating for the stator.
  • the housing also includes a left and right bearing support 207 and 208. Although these bearing supports support the bearings during the assembly stage, their precise positioning is determined by the corresponding bearing supports 107 and 108.
  • the assembly portion 200 of the housing includes a hole 201 which forms part of the strain relief for the wires 301.
  • the tongue 110 drops in behind the hole 201 and clamps the wire against edge 210..
  • the orifice 202 includes a midpoint 211, an outer limit 212, and an inner limit 213 which are configured in substantially the same way as described with respect to the corresponding elements 111, 112, and 113.
  • the edge 215 mates with the edge 115 and the surface 216 is raised with respect to the edge 115 whereas the step 116 is recessed with respect to the edge 115. Accordingly, it will be seen that the cover 100 and assembly portion 200 will meet in mating relationship.
  • the housing assembly includes a brush and spring channel for securing and guiding the commutator brushes.
  • 226 comprises the base of the brush . channel and it should be appreciated that the brush channel has a depth - approximately equal to its width in order to accommodate a square or rectangular brush.
  • 226 comprises the base of the brush channel and 227 comprises the sides of the brush channel and the sides 227 have a height, perpendicular to the plane.of Figure 3, which is approximately equal to the width of the base 226.
  • the surface 117 faces the base 226 to complete the brush channel closure for capturmg and confining the brush and brush spring.
  • the left one of the channel sides 227 includes a slot 228.
  • a contaet member which is assembled with the stator will fit into the slots 228 to provide an electrical connection between the brushes in their respective channels and the stator winding.
  • the surface 117 will be opposite the base 226 thereby completing the brush enclosure.
  • a stop 229 which projects upward in a direction perpendicular to the plane of Figure 7 an amount which approximates 20 percent of the thickness of the brush.
  • the stop 229 will serve to limit the forward motion of the brush spring and prevent it from contacting the commutator. It will be apparent that for this to function, the brush will require a longitudinal slot so that it can pass over the stop 229. It will be apparent that a modified structure could be provided without the stop 229, but with a depression (not shown) situated in substantially the same position as the stop 229 so that a separate stop member could be inserted in the depression when the stopping feature is desired.
  • the base 200 will be seen to include bosses 230 and 231 which have a height comparable to that of the ribs 206 which, in turn, have a height comparable to the ribs 106. As indicated by the dotted lines within the bosses 230 and 231, there is a depression in the housing 200 on the outside side thereof. These depressions 232 and 233 may be formed to coact with locator pins situated on a frame to which the motor is to be mounted thereby properly locating and orienting the motor. As illustrated, one of the depressions 232 and 233 may have an oval configuration in order to allow for tolerance between the locator pins and the depressions 232 and 233. The motor could then be assembled to the frame in the manner illustrated in Figure 2 or by any other appropriate'means.
  • the assembly housing 200 also includes depressions 234 which may be configured to capture a speed nut.
  • depressions 234 In the center of the depression 234 is a hole 235 through which a threaded bolt may be placed for engagement with a captured speed nut (not shown). This would provide another alternate form -of mounting the motor and could be used in conjunction with the mounting depressions 232 and 233.
  • a clip to be described more fully hereinafter in connection with Figure 9 may be positioned in the assembly portion of the housing 200.
  • the clip of Figure 9 could be configured so that a portion thereof will fit into the left hand depression 234 and be captured therein.
  • One portion of the clip will extend into depression 236 in the left bearing support 207 and provide an electrical grounding connection to the bearing placed in the left bearing support 207 during assembly.
  • Another portion of the grounding clip will extend to the right of the hole 235 and provide grounding-connection to the stator.
  • the stator assembly and the bearings are resiliently biased towards the cover assembly 100.
  • the bearing placed in the left bearing support 207 will be biased towards the bearing support 107 by the grounding clip 330, if used. If the grounding clip 330 is not used, the left bearing will be biased towards the cover assembly 100 in the manner to be described with respect to the right-hand bearing.
  • In the right-hand bearing support 208 may be seen a depression 237.
  • a resilient member may be inserted into and captured within the depression 237 and which will project upward slightly.
  • the resilient member placed in the depression 237 will bias the bearing towards the cover bearing support 108 thereby accurately positioning the bearing and the rotor which it supports.
  • a resilient bearing may be placed in depression 238 and serve to bias the stator towards the ribs 106.
  • the grounding clip serves as an alternate biasing means for biasing the stator towards the ribs 106.
  • the assembly portion 200 also includes posts 239 which project upward a distance approximating twice their width.
  • the posts 239 fit between the stator terminal board and the stator laminations and serve as locator and/or positioning posts.
  • the assembly portion also includes a depression 240 which may serve to position and secure a thermal cut-off device, if used.
  • the motor housing portions 200 and 100 are designed to - support and protect the stator and rotor of a fractional horsepower motor.
  • a typical stator 310 and rotor 320 are illustrated in Figure 8. These elements are old and well known; and therefore, it is believed to be unnecessary to describe them in exhaustive details.
  • the stator 310 may have a configuration of the type indicated in U.S. patent 4,038,573 cited hereinabove, and which discloses a 'terminal board.
  • the stator 310 shows a similar terminal board 311 and inserted into terminals of the terminal board 311 are brush contacts 312 shown more clearly in Figure 10.
  • the stator includes laminations 313 and a winding 314.
  • the rotor is formed on a shaft 303 which is supported by bearings 321 and 322. Secured to the shaft 303 is a magnetic structure 323 and a winding 324 which is connected to the commutator segments 325. Supported on the shaft 303 and-in close ppoximity to the bearing 321 is a fan having a plurality of blades 326. The pitch of the fan'blades 326 is such as to move air from right to left as viewed in Figure 8. However, if. expedient, the direction of air flow could be reversed.
  • the rotor assembly 320 fits inside the stator assembly 310 and this subassembly may be placed in the assembly portion 200 of the housing in such manner that the left bearing 321 will fit into the left bearing support 207 while the right bearing 322 will fit into the right bearing support 208.
  • the stator 310 will fit within the housing portion 200 and the laminations 313 will be on or near the ribs 206.
  • The-post 239 will fit between the terminal board 311 and the laminations 313 in the manner generally illustrated in Figure 8 to more accurately locate and position the stator 310 with respect to the assembly portion of the housing 200.
  • the brush contacts 312 will simultaneously fit into the slots 228.
  • the fan and its associated blades 326 are secured to the shaft 303 in such a position that the approximate midpoint of the fan blade tips 326 is aligned with the midpoint 211 and/or 3ll of the orifice 102 and/or 202.
  • the separation between the limits of the fan blades 326 and the midpoint 211 and/or 311 is of the order of .05 inches.
  • the fan blades 326 have a pitch angle of approximately 37 degrees with respect to a plane that includes the axis of the shaft 303 and the center of the fan blade 326.
  • the conic configuration between the inner and outer limits 213 and 212, respectively, enhances the flow of cooling air allowing a larger volume of air to pass over the stator 310 and rotor 320 during operation of the motor.
  • FIG 9 illustrates the grounding clip 330 which, as described with respect to the assembly portion of the housing 200, serves to provide a grounding connection to the stator 310 and the rotor 320 through the left bearing 321.
  • the grounding clip 330 includes a central portion 331 which is configured to fit into the depression 234.
  • the clip 330 may include barbs 332 which will dig into the side. wall 241 of the depression 234, thereby securing the grounding clip 330 to the assembly housing 200.
  • the clip 330 includes a hole 333 through which a threaded bolt (not shown) may pass as it couples to a speed nut secured in the depression 243.
  • the grounding clip includes a formed portion 334 which rests on the base 242 of the assembly portion of the housing 200 and serves to lift the end 335 to a level above the upper plane of the ribs 206 to assure that the end 335 of the grounding clip 330 will be in secure contact with the laminations 313 of the stator 310.
  • the clip 330 includes another formed portion 336 which fits into the depression 236 and provides a spring so that the end 337 bears against the left bearing 321 when it is placed in the left bearing support 207 to urge it upwards towards the left bearing support 107 when the cover 100 is placed on the assembly portion 200 of the motor housing.
  • the clip 330 also includes a hole 338 which may be used for securing a grounding wire which would be positioned to emerge from the housing through hole 201 in the same manner that wires 301 are positioned.
  • the wire connected to the clip 330 at hole 338 would, of course, provide the grounding connection. It will be evident that under certain circumstances wherein the grounding clip also serves as the speed nut, grounding could be accomplished through the mounting bolt that is engaged with the threads of the grounding clip in the alternate structure suggested hereinabove.
  • Figure 10 shows the brush contact 312 in two views.
  • the terminal contact 315 fits into the contact located in the terminal board 311 and the configuration of the contact 312 and the bend 316 positions the spring contact 317 so that it will fit into the slot 228 and be in a position to be contacted by the spring (not shown) associated with the brush.
  • FIG 11 illustrates the lefthand bearing 321 for the shaft 303 and which is positioned in the supports 107, 207 of the motor housing ports 100 and 200, respectively.
  • the scallops 340 are provided to permit cooling air to pass through the bearing. The direction of flow of air will depend upon the pitch of the blades of fan 326. With the fan 326 designed to expel air through the orifices 102 and 202 cooling air will be drawn through the scallopes 340 from outside of the motor. It will be obvious that the size, quantity, and orientation of the scallops 340 may vary depending upon operation conditions. Also, holes through the bearing 321 could be used in place of, or in addition to, the scallops 340.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Motor Or Generator Frames (AREA)
EP82303140A 1981-06-19 1982-06-16 Motorgehäuse Withdrawn EP0068729A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US27518181A 1981-06-19 1981-06-19
US275181 1981-06-19

Publications (1)

Publication Number Publication Date
EP0068729A1 true EP0068729A1 (de) 1983-01-05

Family

ID=23051223

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82303140A Withdrawn EP0068729A1 (de) 1981-06-19 1982-06-16 Motorgehäuse

Country Status (2)

Country Link
EP (1) EP0068729A1 (de)
JP (1) JPS57211953A (de)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2544927A1 (fr) * 1983-04-21 1984-10-26 Bosch Gmbh Robert Petite machine a collecteur, notamment un moteur
GB2219531A (en) * 1988-06-08 1989-12-13 Eastway Electrical motor casing
EP1154546A2 (de) * 2000-05-11 2001-11-14 ebm Werke GmbH & Co. KG Stator eines Aussenläufermotors mit Schutzleiter-Anschlussteil
GB2438248A (en) * 2006-05-18 2007-11-21 Duna Entpr Sa Laterally split body for an electric motor
US20140096990A1 (en) * 2012-10-08 2014-04-10 Robert Bosch Gmbh Portable power tool
CN112202266A (zh) * 2020-12-01 2021-01-08 南京合信自动化有限公司 机器人驱动电机
DE102021132323A1 (de) 2021-12-08 2023-06-15 Audi Aktiengesellschaft Elektromaschine

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63172248U (de) * 1987-04-28 1988-11-09
JP2582797Y2 (ja) * 1993-12-13 1998-10-08 栄之 森 小型モータ
CN108616175B (zh) * 2018-05-10 2020-04-14 胡建坤 有刷永磁微电机及其装配方法

Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2456934A (en) * 1947-08-28 1948-12-21 Gen Electric Casing and fastening means therefor
US2752514A (en) * 1950-06-14 1956-06-26 Junior Tool Company Electric motor housing
US3784856A (en) * 1972-07-31 1974-01-08 Gen Electric Brush holder assembly
GB1389519A (en) * 1972-05-09 1975-04-03 Bosch Gmbh Robert Electrical machines
US3924147A (en) * 1974-01-02 1975-12-02 Barber Colman Co Brushholders and ancillary components mounted on a printed circuit board
US3955113A (en) * 1974-11-27 1976-05-04 General Signal Corporation Brush holder with means for limiting travel of brush spring
US4038573A (en) * 1975-04-21 1977-07-26 General Signal Corporation Coil terminating means
US4056749A (en) * 1976-01-19 1977-11-01 General Signal Corporation Modular motor
FR2386924A1 (fr) * 1977-04-06 1978-11-03 Ducellier & Cie Machine electrique de faible puissance notamment petit moteur de commande pour vehicule automobile
GB2028599A (en) * 1978-08-21 1980-03-05 Sycor Inc Disc recorders
GB2030009A (en) * 1978-07-31 1980-03-26 Ferodo Sa Stator for a rotating electric machine
DE2847979A1 (de) * 1978-11-04 1980-05-22 Bosch Gmbh Robert Lagernabe fuer waelzlager
DE2939560A1 (de) * 1979-09-29 1981-04-23 Siemens AG, 1000 Berlin und 8000 München Festlager mit einem waelzlager, insbesondere fuer die lagerung der laeuferwelle eines kleineren elektromotors

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2456934A (en) * 1947-08-28 1948-12-21 Gen Electric Casing and fastening means therefor
US2752514A (en) * 1950-06-14 1956-06-26 Junior Tool Company Electric motor housing
GB1389519A (en) * 1972-05-09 1975-04-03 Bosch Gmbh Robert Electrical machines
US3784856A (en) * 1972-07-31 1974-01-08 Gen Electric Brush holder assembly
US3924147A (en) * 1974-01-02 1975-12-02 Barber Colman Co Brushholders and ancillary components mounted on a printed circuit board
US3955113A (en) * 1974-11-27 1976-05-04 General Signal Corporation Brush holder with means for limiting travel of brush spring
US4038573A (en) * 1975-04-21 1977-07-26 General Signal Corporation Coil terminating means
US4056749A (en) * 1976-01-19 1977-11-01 General Signal Corporation Modular motor
FR2386924A1 (fr) * 1977-04-06 1978-11-03 Ducellier & Cie Machine electrique de faible puissance notamment petit moteur de commande pour vehicule automobile
GB2030009A (en) * 1978-07-31 1980-03-26 Ferodo Sa Stator for a rotating electric machine
GB2028599A (en) * 1978-08-21 1980-03-05 Sycor Inc Disc recorders
DE2847979A1 (de) * 1978-11-04 1980-05-22 Bosch Gmbh Robert Lagernabe fuer waelzlager
DE2939560A1 (de) * 1979-09-29 1981-04-23 Siemens AG, 1000 Berlin und 8000 München Festlager mit einem waelzlager, insbesondere fuer die lagerung der laeuferwelle eines kleineren elektromotors

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2544927A1 (fr) * 1983-04-21 1984-10-26 Bosch Gmbh Robert Petite machine a collecteur, notamment un moteur
GB2219531A (en) * 1988-06-08 1989-12-13 Eastway Electrical motor casing
GB2219531B (en) * 1988-06-08 1992-08-12 Eastway Electrical motors
EP1154546A2 (de) * 2000-05-11 2001-11-14 ebm Werke GmbH & Co. KG Stator eines Aussenläufermotors mit Schutzleiter-Anschlussteil
EP1154546A3 (de) * 2000-05-11 2002-11-13 ebm Werke GmbH & Co. KG Stator eines Aussenläufermotors mit Schutzleiter-Anschlussteil
DE10023071B4 (de) * 2000-05-11 2008-01-03 Ebm-Papst Mulfingen Gmbh & Co. Kg Stator eines Außenläufermotors mit Schutzleiteranschlussteil
GB2438248A (en) * 2006-05-18 2007-11-21 Duna Entpr Sa Laterally split body for an electric motor
US20140096990A1 (en) * 2012-10-08 2014-04-10 Robert Bosch Gmbh Portable power tool
CN112202266A (zh) * 2020-12-01 2021-01-08 南京合信自动化有限公司 机器人驱动电机
CN112202266B (zh) * 2020-12-01 2021-06-15 南京合信自动化有限公司 机器人驱动电机
DE102021132323A1 (de) 2021-12-08 2023-06-15 Audi Aktiengesellschaft Elektromaschine

Also Published As

Publication number Publication date
JPS57211953A (en) 1982-12-25

Similar Documents

Publication Publication Date Title
US5818142A (en) Motor pack armature support with brush holder assembly
US3967148A (en) Brush holder assembly
US4322647A (en) Motor assembly
EP0068729A1 (de) Motorgehäuse
US5196750A (en) Electric motors with electromagnetic interference reduction
US4056749A (en) Modular motor
US5663604A (en) Brushless motor
EP0142237A1 (de) Komponenten elektrischer Motoren
US6717322B2 (en) Motor housing having simplified cover plate and brush base
EP0987811A2 (de) Kontaktierung von Motorwicklungen
WO1995030269A1 (en) Brush holder assembly
US4798984A (en) Electric motor with earth plate press fitted to motor casing
US5793141A (en) Plug-in modular brush cartridge
CN101457762B (zh) 轴流风扇单元
EP0291823A2 (de) Befestigung für Bürsten von Elektromotoren
JPS61196738A (ja) 真空モータアセンブリ
US5990594A (en) Brush retaining clip and electrical connection
EP1964245B1 (de) Statorendscheibe für einen kommutatormotor und kommutatormotor
US5363005A (en) Miniature motor
US5034640A (en) End frame of a small motor with multiple openings for multiple terminal locations
US20050073210A1 (en) Permanent magnet motor
US3980909A (en) Universal and D.C. motors with improved field structure for portable tools and appliances
DE102004057199A1 (de) Elektromotor mit elastischem Element und Vorrichtung zum Herstellen desselben
JPS62163543A (ja) モ−タに使用するブラシギヤ組立体
US3168868A (en) Pump device

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): DE FR GB

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19831212

RIN1 Information on inventor provided before grant (corrected)

Inventor name: DE SISTO, RICHARD EDWARD

Inventor name: HICKMAN, DALE A.

Inventor name: SNIDER, LARRY E.